Files

T

vasilito 43fd088349 Rename rbos → redbear everywhere, add redbear-info system tool

Replace all 'rbos'/'RBOS' references with 'redbear'/'Red Bear OS'
across the build system, scripts, docs, and configs. Renamed files:
  rbos.ipxe → redbear.ipxe
  assets/rbos-icon.png → assets/redbear-icon.png
  recipes/system/rbos-info → recipes/system/redbear-info

Added redbear-info: a system tool that enumerates all Red Bear OS
custom components, checks runtime availability via scheme paths and
binary presence, and prints status/test info. Supports --verbose,
--json, and --test output modes. Zero external dependencies.

2026-04-12 19:46:54 +01:00

3.5 KiB

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Red Bear OS

Microkernel operating system in Rust — based on Redox OS

Red Bear OS is a derivative of Redox OS — a general-purpose, Unix-like, microkernel-based operating system written in Rust. It tracks upstream Redox, incorporating its improvements while adding custom drivers, filesystems, and hardware support.

What's Different from Upstream Redox

Component	Status	Detail
AMD GPU driver (amdgpu)	🚧 In progress	LinuxKPI compat layer + AMD DC modesetting
ext4 filesystem	✅ Compiles	Read/write ext4 alongside RedoxFS
ACPI for AMD bare metal	⚠️ Partial	x2APIC, DMAR, IVRS, MCFG parsing
Custom branding	✅	Boot identity, hostname, os-release
POSIX gaps (relibc)	🚧 In progress	eventfd, signalfd, timerfd, open_memstream

Project Structure

├── config/           # Build configs (TOML) — desktop, minimal, redbear-*
├── recipes/          # Package recipes (~100+ packages, 26 categories)
├── mk/               # Makefile build orchestration
├── src/              # Cookbook Rust tool (repo binary, cook logic)
├── local/            # ← Red Bear OS custom work (survives upstream updates)
│   ├── patches/      #   Kernel, base, relibc patches
│   ├── recipes/      #   Custom packages (drivers, GPU, system, branding)
│   ├── scripts/      #   sync-upstream.sh, apply-patches.sh
│   ├── Assets/       #   Branding (icon, boot background)
│   └── docs/         #   Integration documentation
├── docs/             # Architecture guides
├── scripts/          # Helper scripts
└── Makefile          # Root build orchestrator

Build

Requires a Linux x86_64 host with Rust nightly, QEMU, and standard build tools. See the Redox Build Instructions for full prerequisites.

make all CONFIG_NAME=redbear-full        # Full desktop + custom drivers
make all CONFIG_NAME=redbear-minimal     # Minimal server
make live CONFIG_NAME=redbear-full       # Live ISO (redbear-live.iso)
make qemu                                # Boot in QEMU

Sync with Upstream Redox

./local/scripts/sync-upstream.sh              # Rebase onto latest Redox
./local/scripts/sync-upstream.sh --dry-run    # Preview conflicts first

The local/ directory is never touched by upstream updates. Recipe patches for kernel and base are symlinked from local/patches/ — protected from make clean and make distclean.

Resources

AI Policy

We welcome contributions made with the assistance of LLMs and AI tools. If you use AI to help write code, documentation, or patches, that's great — we care about the quality of the result, not how it was produced.

License

MIT — same as upstream Redox OS.

3.5 KiB Raw Blame History